San Francisco 49ers LB Michael Wilhoite has started for LB NaVorro Bowman (knee) in all four games this season, and Bowman said he has been impressed by his replacement. "Mike is a good coverage linebacker," Bowman said. "He's starting to get a feel when he can take a chance or not. That comes with experience."

The San Francisco 49ers tendered offers to restricted free-agent DE Demarcus Dobbs and exclusive rights free-agent LB Michael Wilhoite. Dobbs received the lowest tender offer and would make $1.431 million in 2014 if he signs the offer. Wilhoite will make $570,000 next season.

San Francisco 49ers LB NaVorro Bowman (knee) may miss half of the 2014 season, according to head coach Jim Harbaugh. Bowman tore the anterior cruciate ligament in his knee in the NFC Championship game against the Seattle Seahawks and had surgery Feb. 2. "Realistically, halfway through the season, something like that would be more realistic. But I never underestimate NaVorro Bowman -- He's a supreme athlete, a world-class athlete among world-class athletes. The way he moves, his strength, his powers of healing." LB Michael Wilhoite would likely enter the lineup without Bowman.

Fantasy Tip: As a result, Bowman shouldn't be drafted in IDP leagues, but he could be a serviceable addition late in the year if you're struggling for production out of your linebackers.